Jakob van Bethlehem wrote: > Dear users,
> set(CMAKE_PREFIX_PATH "C:/Qt/Qt5.4.0/5.4/msvc2013_64_opengl/lib/cmake") Don't do this. Pass CMAKE_PREFIX_PATH as an argument to cmake. > The CMakeLists.txt file in the subfolder looks like this: > > CMAKE_MINIMUM_REQUIRED(VERSION 3.0.0) This has effects you probably don't intend. I suggest removing it. http://www.cmake.org/cmake/help/v3.1/manual/cmake-policies.7.html > The problem: for some reason when compiling mymain.cpp I get: > fatal error C1083: Cannot open include file: 'mylib_export.h': No such > file or directory > > I already checked that the build-folder is added as an include directory, The build folder of the top-level is added as an include directory. Your export.h file is in the subdirectory. Thanks, Steve. -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake